I've personally not heard of any of the listed Altcoins.

I've got roughly 5 grand invested in current coins:

Ripple XRP - £1500
Siacoin SC - £2000
Etherium ETH - £1500

The current 3 coins I've invested in seem to be doing really well.

I got my Dad to invest £4400 in May and he is now at over £16,000.

I feel those are strong stable coins apart from (SIACOIN) SC - This is a High Risk High Gamble coin which I find a strong investment. The main reason for this is - I worked in Recruitment working with Big Data Engineers and
I gained that is the future with storage/cloud storage solutions around Big Data and industries like Facebook. This coin itself is a Cloud Storage service provider which is almost 10x cheaper than the same Service Microsoft and Amazon are currently offering.  So if you want a nice gamble for the future, I'd put some money on Sia. For secure payment investment ETH, XRP are strong candidates.

But this is just my two piece.